<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .sjx{
            width: 0;
            height: 0;
            border: 20px solid transparent;
            border-top-color: black;
        }
        .sjx:before{
            content: attr(tooltip-data);
        }

    </style>
</head>
<body>
     <div class="sjx" tooltip-data ="this is anothe tip"></div>
</body>
</html>